A sociologist recently conducted a survey of senior citizens who have net worths too high to qualify for Medicaid but have no private health insurance. The ages of the 25 uninsured senior citizens were as follows: $$\begin{array} { l l l l l }
72 & 77 & 70 & 80 & 90 \
78 & 65 & 93 & 69 & 94 \
73 & 96 & 80 & 66 & 85 \
67 & 72 & 85 & 74 & 77 \
64 & 91 & 79 & 68 & 86
\end{array}$$ Find the median of the observations.
A) 77
B) 74
C) 78
D) 77.5

Question

A sociologist recently conducted a survey of senior citizens who have net worths too high to qualify for Medicaid but have no private health insurance. The ages of the 25 uninsured senior citizens were as follows: $$\begin{array} { l l l l l } 
72 & 77 & 70 & 80 & 90 \
78 & 65 & 93 & 69 & 94 \
73 & 96 & 80 & 66 & 85 \
67 & 72 & 85 & 74 & 77 \
64 & 91 & 79 & 68 & 86
\end{array}$$ Find the median of the observations.
A) 77
B) 74
C) 78
D) 77.5

Quizplus · Accepted Answer

The median is the middle value in an ordered list. When the ages are arranged in ascending order, the 13th value is 77.

A Sociologist Recently Conducted a Survey of Senior Citizens Who